Intro to Refrigerant

Question 1

The box and refrigerant are the same
temperature. What is that called?

Answer 1

Equilibrium

Question 2

EPA (Environemntal Protection Agency) regulations do not
allow what?

Answer 2

Releasing refrigerant into atmosphere

Question 3

As pressure_______ temperatures _________box______

Answer 3

Drops, drops, cools

Question 4

Refrigerant is….

Answer 4

Expensive, bad for environment

Question 5

Cold is the absence of…

Answer 5

Heat

Question 6

______migrates to cold

Answer 6

Heat

Question 7

Insulation does not stop heat but ______ it.

Answer 7

Slows

Question 8

Summer …

Answer 8

Heat gain

Question 9

Winter…

Answer 9

Heat loss

Question 10

what temperature does water boil/freeze?

Answer 10

212F, 32F

Question 11

Write Fahrenheit to Celsius formula

Question 12

Write Celsius to Fahrenheit

Question 13

Temperature increase

Answer 13

Molecules moves faster

Question 14

Temperature decrease

Answer 14

Molecules move slower

Question 15

Absolute zero

Answer 15

-460

Question 16

Convection

Answer 16

Heat transfer through fluid flow

Question 17

Conduction

Answer 17

Heat form molecules to molecules

Question 18

Radiation

Answer 18

Heat transfer through rays

Question 19

Barometer

Answer 19

Atmospheric pressure 29.92(sea level)
In inches of mercury(hg)

Question 20

Low pressure means

Answer 20

Low boiling point

Question 21

A vacuum pump

Answer 21

Lowers pressure

Question 22

30 Psig

Answer 22

At sea level

Question 23

Psia

Answer 23

Pounds per Square Inch Absolute (14.7) psig + 14.7

Question 24

Increased evaporator pressure =

Answer 24

Higher evaporater temperature